Ochieng, W., Segera, D., & Nyete, A. (2025). A Compact Dual-Band Antenna Design Using a Non-Uniform Inverted U-Shaped DGS and an Efficient Quasi-Oppositional Grey Wolf Optimizer. Engineering, Technology & Applied Science Research, 15(6), 29704–29714. https://doi.org/10.48084/etasr.13409